94 Bulletin of the Brooklyn Entomological Society Vol. IX 



Benacus griseus Say. Texas; 111. Arctocorisa alternata Say. Kan. 



(IS); Nor. Car. (s) ; N. Y. (6, (27) 



3); Penn. (33); N. J. (25); A. expleta \]h\. Colo. (14) 



Florida (31) ; Kan. (27) Corixa pygmcea Fieb. Jamaica. 



Lethocerus americanus Leidy as " Comes to light in great num- 



above (6, 25) bers." (Kirkaldy) 



L. uhleri Mont, as above (5, 25, 27, Corixa spp. not named. Nor. Car. 



31) (7); Minn. (21); "attracted in 



L. obscurus Duf. as above (6, 25) large numbers to light." United 



L. annulipes H. S. Costa Rica (4). States (28) 



"Often picked up in the streets, Micronecta lucina'Dist India (10) 



principally at night." M. minthe Dist. India (10) 



L. collosicus Stal. Costa Rica (4) M. dione Dist. India (10) 



L. niloticus Stal. (10). "Abundant M. striata Fieb. India (10). "In 



at light in South Africa." (Dis- October they flew to my lamps in 



tant) numbers every day." (Distant) 



L. deyrolli Vuill. India (10) Notonecta variabilis Fieb. Argen- 



Belostoma (^= Lethocerus). Tenn. tine (2). "In summer and au- 



(26) tumn enters houses seeking the 



Pedinocoris macronyx Mayr. Cali- light of the lamps, etc." (Berg). 



fornia (16) Notonecta spp. Minn. (21) 



It is curious that although the European fauna is the most 

 studied of all, records of only three Heteroptera at light have 

 been found, most of the observations referring to Reduvius per- 

 sonatus well-known as a night hunter. Out of the 1,971 species 

 enumerated in Fauna of British India by Distant, seven only have 

 been noted as coming to light. Published American records are 

 greater in number and 39 species have been observed or caught 

 at light, the repeated observations being on Benacus and 

 Lethocerus. 



Published records give a total of Heteroptera coming to light 

 of only 75 species out of the 20,000 described. To these few are 

 now added ^y, of which 25 represent the British Guiana material 

 and 12 heretofore unpublished North American records, raising 

 this total to 112 species. In general, they are species which lie 

 more or less concealed by day and it may be reasonably deduced 

 for many of the others, as is well known of Reduvius, that night 

 is their chief period of activity. Certain others, notably the 

 Miridse, are probably denizens of nearby grass clumps or bushes. 

 Many, especially the aquatic species, are great travellers by night 

 and in their migrations in force fall victims to the attraction of 

 bright light as they wing their way from one retreat to another. 



